Lamp.



. L. S. CHADWICK.

LAMP.

APPLICATION FILED APR. I9, 1915.

Patented July 4, 1916.

2 SHEETS-SHEET L. S. CHADWICK.

LAMP.

APPLICATION FILED APR. 19, 1915.

2 SHEETS-SHEET 2.

Patented July 4, 1916.

wick.

TED STATES PATENT OFFTQE.

LEE S. GHADWICIL'OF EAST CLEVELAND, OHIO, AS SIGNOR TO THE CLEVELAND FOUNDRY COMPANY, CLEVELAND, OHIO, A CORPORATION OF OHIO.

LAMP.

Application filed April 19, 1915. Serial No. 22,243.

' accompanying drawings.

This invention relates to improvements in that class of lamps known to the trade as vaclites, wherein a suitable wax, such as a. low grade of paraffin, is burned through a 'The fact that the fuel employed in these lamps is absolutely non-inflammable, except when its temperature is raised to a sufficiently high degree to result in the generation of gas, makes these lamps especially suitable for use on board ships, in warehouses, engine rooms, and such places, where the use of lamps of this character is especially convenient and where fire would prove extremely disastrous. Because of this peculiarity of the fuel no danger re sults from inadvertently leaving the lamp under conditions which would cause an ordinary lamp to explode, or from the lamp being accidentally upset. It follows, therefore, that, when the lamp is cold and the wax congealed, the wax has to be melted and raised to the required temperature before the lamp can be lighted. This has been accomplished in the past by depositing about the upper end of the wick a quantity of wax, and then holdingamatc lighting means, to the wick until the same ignites. As the wick continues to burn,the wax becomes of gas is generated, but usually this operation has to be repeated several times before the parts associated with the wick have transmitted enough heat to the wax contained within the reservoir of the lamp to melt thebody of wax and start it drawing through the wick in order to supply the flame with fuel. This is especially true if the quantity of wax within the reservoir is low. 7

It is the object of my invention to provide a lamp of the aforesaid character which may be very easily lighted, and conveniently supplied with fuel. 7, p

In my lamp, as in former instances above related, it is necessary Specification of Letters Patent. 7

or other melted and a certain amount to deposit a certain Patented July 4., 1916.

amount of-wax either upon or in close proximity to the end or portion of the wick that isto be lighted.

Therefore, my invention has as a further ob ect the provision of means whereby a quantity of wax may be very conveniently supplied to the wick.

V It will be understood that when the wax is in a cold or hardened condition it is more or less difficult to remove a piece from the body of wax contained in the reservoir, for use in the above described lighting operation. This has been done heretofore by the use of a prod and through a comparatively small opening in the top of the reservoir. In my invention I provide a device or element, referred to hereinafter as a cartridge, that normally reposes .within the body of wax that is contained within the reservoir and within which a quantity of the melted wax will accumulate when the lamp is burning. When the lamp is cold and the wax congealed, the aforesaid element or cartridge may be inverted and presented to the wick so that the wax carried thereby is delivered in proper relation thereto. To facilitate the removal of'the aforesaid element, when the wax is cold, I employ means for prying such element loose from the body of wax. Other and more limited objects pertaining to this featureof my invention will become apparent as I proceed to describe the cooperation of the wax carrying cartridge, with thewick holder.

In the accompanying drawings which form a part of this specification, Figure l'is a perspective of my improved lamp as it would appear in the act of removing the cartridge; tion through the lamp as indicated by the line 22'of Fig. 3; Fig. 3 is a plan of the lamp, the cartridge and wick holder being shown in horizontal section as indicated by the line 33 of Fig. 2; and Figs. 4 and 5 are perspective views, respectively, of the wick holder and cartridge.

The reservoir or fuel receptacle 1 of the lamp is cylindrical in shape, the bottom 2 preferably being integral with the sides, and the whole formed by drawing the metal in a common and wellknown manner. A horizontal flange 3 extends outwardfrom and surrounds the upper end of the reservoir and a semi-circular cover 4 is attached to Fig. 2 is a central vertical seccally at right angles to each other.

one side of the top of the reservoir by having its curved periphery turned down and under the flange 3, as shown at 5. It will be observed that the body portion of the cover 4 is depressed within the top of the reservoir, whereby a very substantial connection is formed between the parts, the vertical portion 6 of the cover preventing any pos sible movement of the portion 5 from beneath the flange 3. The straight edge of the cover 4 is notched at 7, and the tongues on the opposite sides of the notch are curled upward and over to form sleeves 8 for the reception of a hinge pintle 9. A semi-circular lid 10 is arranged to close the other half'of the upper end of the reservoir, and its straight edge is provided with a sleeve 11 for cooperation with that portion of the r hinge pintle that extends across the notch 7.

A flange 12 extends about the curved side of the lid 10 and occupies an elevation higher than the body portion of the cover, in a position to rest upon the flange 3 of the reservoir, when the lid is closed and its a body portion in the plane of the cover 4.

A tongue extends from the middle of the curved side of the lid and is crimped for cooperation with the edge of the flange 3 so as to form a spring latch 13 which serves to retain the cover closed. The ends of the flange 12, and the vertical portion of the lid 10 are cut away adjacent each end of the hinge, as shown at 14, to prevent interference between the adjacent portions of the lid and cover when the lid is opened.

The wick holder 20, shown in perspective in Fig. 4, is formed of a strap of metal that is doubled over at about its middle until its halves lie substantially parallel and in close proximity to each other, but are spaced apart a suflicient distance to accommodate a wick therebetween. The doubled strap is now bent at substantially its longitudinal center so that its end sections are practi- Thus, the holder assumes an L-shaped appearance when in readiness for use, as illustrated in Figs. 2 and 4. The upper end of the inner member of the holder has a transverse head- 21 that corresponds in length substantially with the width of the wick, and this head is connected to the vertical portion 22 of the aforesaid member by a neck 23. The aforesaid portion 22 is made wider than the remainder of the holder and its lateral edges are turned over and in a plane parallel to its body portion to form channels 24. The upper end of the aforesaid vertical portion 22 is provided with a series of slots or openings 25, and it will be observed that the upper and lower ends of the slots or openings are made pointed. or diamond shape for a purpose which will be presently explained. The horizontal portion of the inner member of the holder is provided with an opening 26 and an opening 27 is formed in the verti cal portion 28, that is opposed to the previously mentioned vertical portion 22. The extreme upper end of the portion 28 is turned over, as shown at 29.

30 represents the wax carrying element or cartridge, already referred to, and the same comprises a rectangular casing to which the numeral 30 is applied. The side walls of the cartridge are extended beyond the end walls thereof to form cars 31, having perforations 32. The forward edges of the side walls are turned outward in a plane parallel with its open side, to form flanges 33, that are adapted to occupy the channels 24 of the wick carrier, when the parts are as sem'bled for use. A central, transverse par tition 35 divides the cartridge into two com partments.

Adjacent its curved side, and located at substantially its transverse center, the cover 4 is provided with an opening for the reception of the wick holder and cartridge, the opening, as clearly shown in Fig. 3, having a portion 36 for the accommodation of the cartridge; portions 37, for the reception of the channels 24; and a part 38, which is occupied by the wick and the portion 28 of its holder. In assembling these parts, the lower end of the holder is inserted through the opening and the vertical portion thereof is then brought to upright position, after which its channels may be inserted into and slid downward through the portions 37 of the opening. The cartridge may then be pushed downward through the portion 36, with its flanges 33 within the channels 24 of the wick holder.

In the use of the lamp, the lid 10 may be opened and a quantity of wax deposited in the reservoir, and after the lamp has once been used the wax will be melted, and will, upon its subsequent cooling, congeal in a body similar to that illustrated in Fig. 2. The wax, in this figure, is indicated at 40. It will be observed that a quantity of the wax reposes within the lower compartment of the cartridge, but that there is none within the vicinity of the upper end of the wick. Now in order to place the lamp in condition for lighting, a quantity of wax.

must be placed close enough to the upper end of the wick to cause it to be melted and supply the wick with fuel, upon the lighting of the wick. Furthermore, it is an ad- 1 nected to a part of the lamp by a chain 42. When the pin is not in use it may be stuck down through the aperture 4 in the cover 4. A bail 43 forms the other of the aforesaid couple, and has its opposed ends pivoted within ears 44 that rise from opposite sides of the reservoir. The pin 41 is adapted to be inserted through the holes 32 in the cars 31 of the cartridge, with its ends reposing above the sides of the bail 43. Now, by placing one hand upon the top of the lamp to hold it firmly in position, and by grasping the outer end of the bail with the other, the operator may very easily raise the bail to loosen the cartridge and slide it up until it may be easily removed by hand. The cartridge is then inverted and returned to its former location with its end containing the wax adjacent the upper end of the wick. In the withdrawal of the cartridge from the lamp, a slight quantity of the wax is scraped off by the lower edge of the head 21 and deposited upon the top of the wick. Therefore, immediately upon the application of a light to the wick, this wax is melted and permeates the wick, and greatly facilitates the ignition of the wick. In the initial burning of the lamp, the wax within the cartridge, and that which has congealed within the adjacent portion of the wick, are melted, and a continuous combustion follows.

To enable the wax within the cartridge to be more readily acted upon by the heat, the ends of the cartridge are made more shallow than the side walls thereof, soas to expose a portion of the wax. It'has been stated above that the head 21 acts to scrape off a quantity of the wax as the cartridge is removed, and to deposit it upon the wick. Furthermore, this head acts as a flame spreader to give breadth to the flame that would otherwise rise in a narrow tongue and be less eflicient than if spread out to the full width of the wick; and the head further acts as a generator, after it has become heated, for assisting in the creation of gas. As the wax within the cartridge continues to melt, a part of it will flow through the openings 25 into the wick, and the remainder will return to the reservoir where it will soften the surrounding wax. Also, considerable heat will be transmitted through the head 21, tongue 23 and portion 22,,to the body of wax within the reservoir. Therefore, shortly after the lamp is placed in operation, the wax will become liquefied and flow freely about the wick, the openings 26 and 27 being provided to allow greater ease of access of the wax to the wick.

It will be explained that the purpose of making the ends of the openings or slots 25 within the portion 22 of the wick holder pointed or diamond shape, is to facilitate in the slicing off of the Waxwhich occupies these openings, and is integral with that contained in the wick, as the cartridge is being removed.

To expedite the entrance of the flanges 33 of the cartridge into the channels 24 of the wick holder, the outer edges of the ends of the opposed flanges converge; although it will be understood that they might be made straight and the upper ends of the channels flared outward; or both may be employed if' desired.

Having thus described my invention, what I claimis 1. A lamp of the character set forth comprising a reservoir, means for supporting a wick with a portion of the wick within and a portion without the reservoir, the latter portion being adapted to be lighted, and a wax carrying element that reposes with one end within the reservoir and adapted to be inverted and supported by a part of the lamp with its wax laden end in juxtaposition to the portion ofthe wick that is to be lighted.

2. A lamp of the character set forth comprising a reservoir, means for supporting a wick with a portion of the wick within and a portion without the reservoir, the latter portion being adapted to be lighted, and a reversible element having a wax carrying section at each end and adapted to be sup ported with one end in the reservoir and the other in juxtaposition to the portion of the wick that is to be lighted.

3. A lamp of the character set forth com prising a reservoir, a holder for supporting a wick with'a portion of the wick within and a portion without the reservoir, the latter portion being adapted to be lighted, said wick holder having a longitudinal guide way, and a wax carrying element that is slid'able within the guideway of the holder and movable from a position within the reservoir to a position adjacent the portion of the wick that is to be lighted.

4. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and a portion without the reservoir, the latter portion being arranged to be lighted, said holder having a longitudinal guideway, a wax carrying element that is slidable within the guideway of the holder and movable from a position within the reservoir to a position adjacent'the portion of the wick that is to be lighted, and means for delivering aquantity of wax from the wax carrying element into operative relation to the last mentioned portion of the wick upon the withdrawal of the element from the guideway of the wick holder.

5. A lamp of the character set forth comprising a reservoir, means for supporting a wick with a portion of the wick within and a ortion without the reservoir, the latter portion being adapted to be lighted, a wax carrying element having a portion normally reposing within the reservoir and removable therefrom, and means for delivering a quantity of wax from the wax carrying element into operative relation to the last mentioned portion of the wick by the with drawal of the element from the reservoir.

6. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and a portion without the reservoir, the lat ter portion being adapted to be lighted, and a wax carrying element that is slidable along the wick holder from a position within the reservoir to a position adjacent the portion of the wick that is to be lighted.

7 A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the Wick within and a portion Without the reservoir, the latter portion being adapted to be lighted, said holder having a longitudinal guideway, a wax carrying element that is slidable within the guideway of the wick holder from a position within the reservoir to a position adjacent the portion of the wick that is to be lighted, means for delivering a quantity of wax from the wax carrying element into operative relation to said portion of the wick upon the withdrawal of the element from the guideway of the wick holder, and means for withdrawing said element from said guideway.

8. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and aportion without the reservoir, the latter portion being adapted to be lighted, and a reversible element having a wax carrying section at each end, the wick holder being provided with a pair of opposed guideways, and the aforesaid element having portions that are slidable within said guideways whereby the element is removably supported with one end in the reservoir and the other in juxtaposition with the portion of the wick that is to be lighted.

9.-A lamp of the character set forth com prising a reservoir, a holder for supporting a wick with a portion-of the wick within and a portion without the reservoir, the latter portion being adapted to be lighted, a reversible element having a wax carrying section at each end, the wick holder being provided with a pair of opposed guideways, and the aforesaid element having portions that are slidable within said guideways whereby the element is removably supported with one end in the reservoir and the other in juxtaposition with the portion of the wick that is tobe lighted, a bail pivoted to the reservoir, and means adapted to extend from the aforesaid element and overhang the bail when the bail is in other than vertical position, thereby to raise said element upon the elevation of the bail.

10. A lamp of the character set forth comprising a reservoir, a holder for supporting a Wick with a portion of the wick within and a portion without the reservoir, said holder having a flat portion, the lateral edges of which are turned over to form 0pposed channels, and an invertible, boxshaped cartridge having flanges which are slidable within the aforesaid guideways, and having an open side that is adapted to be closed by the aforesaid flat portion of the wick holder when the flanges are within the guideways.

11. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and a portion without the reservoir, said holder having a flat perforated portion the lateral edges of which are turned over to form opposed channels, and an invertible box-shaped cartridge having flanges which are slidable within the aforesaid guideways and having an open side that is ad apt ed to be closed by the aforesaid flat portion of the wick holder when the flanges are within the guideways.

12. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and a portion without the reservoir, said holder having a flat portion the lateral edges of which are turned over to provide vertical guideways, an invertible box-shaped cartridge having flanges that are slidable with in the aforesaid guideways and an open side that is adapted to be closed by the aforesaid fiat portion of the holder when the flanges are within the guideways, said flat portion having apertures the side edges of which converge toward their upper ends, and a head spaced from the upper end of the flat portion of the wick holder and slightly overhanging the same in the direction of the cartridge.

13. A lamp of the character set forth comprising a reservoir, a holder for supporting a wick with a portion of the wick within and a portion without the reservoir, the latter portion being adapted to be lighted, an invertible cartridge having a wax carrying compartment adjacent each end, means for guiding the cartridge substantially vertieally along the side of the wick, a member pivoted to the sides of the reservoir on an axis substantially parallel to the transverse axis of the cartridge but located to one side thereof, the cartridge having a pinreceiv ing aperture, and a pin that is adapted to be inserted through said aperture and overhang the aforesaid member when it is in other than vertical position, thereby to raise the cartridge upon the elevation of said member.

14. A lamp of the character set forth comprising a reservoir, a Wick holder consisting of a strap of metal that is bent at its middle and then back upon itself and then formed into an L shape, the opposed sides of the holder being spaced apart to receive a wick therebetween, the inner portion of the horizontal branch of the holder and the outer portion of the vertical branch there of being perforated, the inner portion of the vertical branch of said member having its lateral edges turned over to form opposed channels on its inner side, said portion having apertures adjacent its upper end the edges whereof converge upwardly, the horizontal branch of the holder extending across the bottom of the reservoir and the vertical branch rising through the top thereof, an invertible cartridge comprising a box shaped casing having an open side from the lateral edges of which extend flanges in the plane of said open side, said flanges being arranged to occupy the channels of the wick holder, the sides of the cartridge extending beyond the ends thereof where they are provided with pin receiving apertures, a bail pivotally connected to the sides of the reservoir on an axis substantially parallel to the axis of alining holes in the opposed side extensions of the cartridge, and a pin that is adapted to be inserted through the pin receiving apertures of the cartridge and overlie the sides of the bail when the bail is in substantially horizontal position.

15. A lamp of the character set forth comprising a reservoir, a Wick holder consisting of a strap of metal that is bent at its middle and then back upon itself and then formed into an L shape, the opposed sides of the holder being spaced apart to receive a wick therebetween, the inner portion of the vertical branch of said member having its lateral edges turned over to form opposed channels on its inner side, said por- Gopies of this patent may be obtained for five cents each, by addressing the tion having apertures adjacent its upper end, the horizontal branch of the holder extending across the bottom of the reservoir and the vertical branch rising through the top thereof, and an invertible box-shaped casing having an open side from the lateral 'edges of which extend flanges in the plane of said open side, said flanges being arranged to occupy'the channels of the wick holder.

16. A lamp of the character set forth comprising a reservoir, and a wick holder consisting of a strap of metal that is bent at substantially its middle and back upon itself and is then formed into an L shape, the opposed sides of the holder being spaced apart to receive a Wick therebetween, the horizontal branch of the holder extending across the bottom of the reservoir and the vertical branch rising through the top thereof.

17. A lamp of the character set forth comprising a cylindrical receptacle having a flange extending outward from its upper edge, a semi-circular cover closing half of the upper end of the receptacle and being inset with respect a portion which extends up the inside wall of the receptacle, across the top of the aforesaid flange and is turned underneath the same, a semi-cylindrical lid that is substantially in the plane of and hingedly connected to the straight side of the aforesaid cover and having its curved side extending upward to the elevation of the aforesaid flange and across the same, and a latch for securing the free edge of the lid to the re ceptacle.

In testimony whereof, I hereunto afiix my signature in the presence of two Witnesses.

LEE S. OHADWICK.

WVitnesses:

BRENNAN B. WEsT, ROBERT L. BRUoK.

Commissioner of Patents,

Washington, D. G.

thereto, said cover having- 

